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Modular, log canonical, and tropical compactifications
Special Events| Speaker: | Eugene Tevelev, University of Texas at Austin |
| Location: | 1147 MSB |
| Start time: | Tue, Feb 7 2006, 4:10PM |
Description
The celebrated moduli space of stable curves of Grothendieck,
Knudsen, and Mumford admits a straightforward generalization in all
dimensions: the moduli space of stable pairs introduced by Kollar,
Shepherd-Barron, and Alexeev. Their construction is not
effective and relies on the Minimal Model Program.
Using the classical example of a cubic surface with 27 lines, I'll
describe joint work with Hacking and Keel where we construct the moduli
space of stable Del Pezzo surfaces and describe its boundary using
non-archimedean amoebas. This is one instance of the beautiful
connection between the Mori theory and the "tropical geometry".